Comment # 8
on bug 98578
from Nicolai Hähnle
This took a while to track down. There is a shader (source @9633678, linked into program 1127) which relies on -inf * +F == -inf. LLVM transforms the shader in such a way that the result becomes a NaN instead (visible at a single pixel @ 953,0 in the final frame of the trimmed trace at @14722003), which then propagates to an ugly white square in post-processing. The LLVM transform is simply incorrect and fixed by https://reviews.llvm.org/D26602.
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